OK, Colin has got me on the right track. Now I see that the real
discrepancy is the choice of points on the lateral track. There are
two nearby hits in the strip view at Z=345.2, D=6971 and D=6983. When
I run DREAM on RS6000, both the lateral track and the strip track
choose the hit at 6971, and the hit at 6983 shows up in the "other
strip hits" category. However, in the MUADST, the lateral track
chooses the hit at 6983 while the strip hit chooses the hit at 6971.
Looking on event display, it is obvious that my executable made the
right choice and MUADST made the wrong choice. So there is still a
"disturbing DST discrepancy".
Bob
------------------------------------------------------------------------
DASH> d/in file1.far <<< made from .ZEB file on RS6000 >>>
DASH> ana 1
Evnt: Run 11731; Event 236
DASH> far/node /Evnt/Ltrk0 print
Lateral Track Node v0
Slope -0.80; Slope Err. 0.00
Intercept 1355.00; Intercept Err. 0.96
There are 12 central hits.
Wire:
x: 7035.33 z: 952.60 dx: 3.51 dz: 6102.72 q: 83.50 t: 0.53
... <<< stuff deleted >>> ...
Strip:
d: 6561.74 z: 952.60 dd: 7.19 dz: 6102.72
d: 6556.45 z: 961.30 dd: 3.83 dz: 6102.72
d: 6533.80 z: 994.70 dd: 3.82 dz: 6102.72
d: 6528.84 z: 1003.70 dd: 7.17 dz: 6102.72
d: 7093.61 z: 165.02 dd: 6.46 dz: 6202.72
d: 7051.80 z: 225.31 dd: 3.10 dz: 6202.72
d: 7015.28 z: 285.01 dd: 3.10 dz: 6202.72
d: 6971.49 z: 345.21 dd: 3.10 dz: 6202.72 ***
d: 6930.78 z: 405.35 dd: 3.10 dz: 6202.72
d: 6892.85 z: 465.20 dd: 6.55 dz: 6202.72
d: 6849.26 z: 525.20 dd: 6.46 dz: 6202.72
d: 6830.07 z: 555.10 dd: 3.10 dz: 6202.72
There are: 4 lateral hits.
z: 184.28 y: 1214.70 dz: 24.25 dy: 6002.72 q: 632.00 t: 0.38
... <<< stuff deleted >>> ...
Matching wire track exists
Matching strip track exists
DASH> far/node /Evnt/Strk0 print
Strip Track Node v0
Slope -0.67; Slope Err. 0.00
Intercept 7205.03; Intercept Err. 0.68
There are 12 strip hits.
d: 6561.74 z: 952.60 dd: 7.19 dz: 6102.72
d: 6556.45 z: 961.30 dd: 3.83 dz: 6102.72
d: 6533.80 z: 994.70 dd: 3.82 dz: 6102.72
d: 6528.84 z: 1003.70 dd: 7.17 dz: 6102.72
d: 7093.61 z: 165.02 dd: 6.46 dz: 6202.72
d: 7051.80 z: 225.31 dd: 3.10 dz: 6202.72
d: 7015.28 z: 285.01 dd: 3.10 dz: 6202.72
d: 6971.49 z: 345.21 dd: 3.10 dz: 6202.72 ***
d: 6930.78 z: 405.35 dd: 3.10 dz: 6202.72
d: 6892.85 z: 465.20 dd: 6.55 dz: 6202.72
d: 6849.26 z: 525.20 dd: 6.46 dz: 6202.72
d: 6830.07 z: 555.10 dd: 3.10 dz: 6202.72
DASH> far/node /Evnt/othS0 print
Other Strip Hits Node v0
There are 5 strip hits.
d: 7078.74 z: 961.30 dd: 3.74 dz: 6202.72
d: 6656.89 z: 1003.70 dd: 7.17 dz: 6102.72
d: 6467.93 z: 225.50 dd: 3.10 dz: 6102.72
d: 7107.23 z: 165.02 dd: 6.81 dz: 6202.72
d: 6983.25 z: 345.21 dd: 6.46 dz: 6202.72 ***
DASH> d/in file2.far <<< file made from MUADST >>>
DASH> ana 1
Evnt: Run 11731; Event 236
DASH> far/node /Evnt/Ltrk0 print
Lateral Track Node v0
Slope -0.80; Slope Err. 0.00
Intercept 1355.16; Intercept Err. 0.96
There are 12 central hits.
Wire:
x: 7035.33 z: 952.60 dx: 3.51 dz: 6102.72 q: -99999.00 t: -99999.00
... <<< stuff deleted >>> ...
Strip:
d: 6561.74 z: 952.60 dd: 7.19 dz: 6102.72
d: 6556.45 z: 961.30 dd: 3.83 dz: 6102.72
d: 6533.80 z: 994.70 dd: 3.82 dz: 6102.72
d: 6528.84 z: 1003.70 dd: 7.18 dz: 6102.72
d: 7093.61 z: 165.02 dd: 6.46 dz: 6202.72
d: 7051.80 z: 225.32 dd: 3.10 dz: 6202.72
d: 7015.28 z: 285.02 dd: 3.10 dz: 6202.72
d: 6983.25 z: 345.22 dd: 6.46 dz: 6202.72 ***
d: 6930.78 z: 405.36 dd: 3.10 dz: 6202.72
d: 6892.85 z: 465.20 dd: 6.55 dz: 6202.72
d: 6849.26 z: 525.20 dd: 6.46 dz: 6202.72
d: 6830.07 z: 555.10 dd: 3.10 dz: 6202.72
There are: 4 lateral hits.
z: 184.28 y: 1214.70 dz: 24.25 dy: 6002.72 q: -99999.00 t: -99999.00
... <<< stuff deleted >>> ...
Matching wire track exists
Matching strip track exists
DASH> far/node /Evnt/Strk0 print
Strip Track Node v0
Slope -0.67; Slope Err. 0.00
Intercept 7205.03; Intercept Err. 0.68
There are 12 strip hits.
d: 6561.74 z: 952.60 dd: 7.19 dz: 6102.72
d: 6556.45 z: 961.30 dd: 3.83 dz: 6102.72
d: 6533.80 z: 994.70 dd: 3.82 dz: 6102.72
d: 6528.84 z: 1003.70 dd: 7.18 dz: 6102.72
d: 7093.61 z: 165.02 dd: 6.46 dz: 6202.72
d: 7051.80 z: 225.32 dd: 3.10 dz: 6202.72
d: 7015.28 z: 285.02 dd: 3.10 dz: 6202.72
d: 6971.49 z: 345.22 dd: 3.10 dz: 6202.72 ***
d: 6930.78 z: 405.36 dd: 3.10 dz: 6202.72
d: 6892.85 z: 465.20 dd: 6.55 dz: 6202.72
d: 6849.26 z: 525.20 dd: 6.46 dz: 6202.72
d: 6830.07 z: 555.10 dd: 3.10 dz: 6202.72
DASH> far/node /Evnt/othS0 print
Other Strip Hits Node v0
There are 4 strip hits.
d: 7078.74 z: 961.30 dd: 3.74 dz: 6202.72
d: 6656.88 z: 1003.70 dd: 7.18 dz: 6102.72
d: 6467.93 z: 225.50 dd: 3.10 dz: 6102.72
d: 7107.23 z: 165.02 dd: 6.82 dz: 6202.72